Rebel, strength training will help so much! It will tone your arms, fill the excess skin with muscle as you lose fat, help you look tight and toned, and make you feel great! Plus, it revs your metabolism! One hour of lifting weights will rev your metabolism for the next 12 hours so you burn as much energy as you would in an hour long aerobics class just by living your regular life! It's good stuff!

However, depending on how much "flab" you have in your arms, you may not be able to get rid of it all with strength training. If not, you may think about getting surgery to remove the extra skin if it's in your way. It just depends. Just keep that as an option in your mind, just in case. And do strength training in the meantime!